Support arbitrary swizzles of image data

• Support arbitrary swizzles of image data.
• Include struct size parameter in VK_MVK_moltenvk extension functions that pass structs that
  might change size across extension versions.
• Remove vkGetMoltenVKDeviceConfigurationMVK() & vkSetMoltenVKDeviceConfigurationMVK() functions.
• Allocate MVKDescriptorSets from a pool within MVKDescriptorPool
• Support copying between textures of compatible-sized formats
• Support VK_FORMAT_A2B10G10R10_UNORM_PACKED vertex format
• Build scripts support SRCROOT path containing spaces.

Release for Vulkan SDK 1.1.85

• Add support for features:
  • shaderStorageImageMultisample
  • shaderStorageImageReadWithoutFormat
  • shaderStorageImageWriteWithoutFormat
  • shaderUniformBufferArrayDynamicIndexing
  • shaderSampledImageArrayDynamicIndexing
  • shaderStorageBufferArrayDynamicIndexing
  • shaderStorageImageArrayDynamicIndexing
• Support reduced render area
• Support rasterization to missing attachment
• Allocate MVKCommandBuffers from a pool within MVKCommandPool.
• Update glslang version
• Update to latest SPIRV-Cross version:
  • MSL: Improve coordinate handling for buffer reads.
  • MSL: Expand arrays of buffers passed as input.

Add extensions and update SPIRV_Cross.

• Add support for extensions:
  • VK_KHR_maintenance2
  • VK_EXT_vertex_attribute_divisor
  • VK_KHR_sampler_mirror_clamp_to_edge
  • VK_KHR_image_format_list
  • VK_KHR_dedicated_allocation
  • VK_KHR_get_memory_requirements2
  • VK_EXT_shader_viewport_index_layer
• Support multiple viewports and scissor rectangles.
• Support sampleRateShading.
• Support pre-filling Metal command buffer on same thread as Vulkan command buffer.
• Support passing either a CAMetalLayer or an NSView/UIView in the pView member
  when creating a surface.
• Support views of the stencil aspect of depth/stencil images.
• Improvements to subviews on 3D textures.
• Enforce single queue per queue family to improve Metal command buffer handling.
• Set Metal render target sizes on iOS.
• Fix potential deadlocks on query results and fences.
• Fix memory leak on SPIRV conversion.
• Update to Vulkan header 1.1.85 and latest version of library dependencies.
• Update to latest SPIRV-Cross version:
  • MSL: Handle the ViewportIndex builtin.
  • MSL: Handle the SamplePosition builtin.
  • MSL: Fix OpAtomicIIncrement and OpAtomicIDecrement.
  • MSL: Support array of arrays composites and copying.
  • MSL: Fix issues with casting of builtin integer vectors.

Add extensions and update SPIRV_Cross.

• Add support for extensions:
  • VK_KHR_descriptor_update_template
• Create 3D MTLTextureViews for 2D image views of 3D textures.
• Allow building and packaging MoltenVK for of only iOS or only macOS.
• Move packaging scripts out of Xcode projects and into script files.
• vkUpdateDescriptorSet: Handle copies of uninitialized descriptors.
• vkCmdFillBuffer & vkCmdCopyBuffers: Use dispatch call that supports older OS versions.
• Update to latest SPIRV-Cross version:
  • MSL: Emit F{Min,Max,Clamp} as fast:: and N{Min,Max,Clamp} as precise
  • MSL: Implement multisampled array textures.
  • MSL: Emit spvTexelBufferCoord() on ImageWrite to a Buffer.
  • MSL: Handle interpolation qualifiers.
  • MSL: Account for components when assigning locations to varyings.
  • MSL: Do not emit function constants for version < 1.2.

Add extensions and update SPIRV_Cross.

• Add support for extensions:
  • VK_KHR_maintenance1;
  • VK_KHR_shader_draw_parameters;
  • VK_KHR_get_physical_device_properties2;
  • VK_KHR_push_descriptor;
• Add ability to track and access supported and enabled extensions.
• Update to latest SPIRV-Cross version.

vkCmdFullBuffer() & VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT fixes.

• vkCmdFullBuffer() fills buffer using compute shader.
• Fix API for updating MVKDeviceConfiguration::synchronousQueueSubmits.
• vkGetPhysicalDeviceFormatProperties() return VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT
  if supported, even if other format properties are not.
• Support Metal GPU capture scopes.
• Update to latest SPIRV-Cross, glslang & SPIRV-Tools.

Updates for CTS testing & SDK 1.1.82.

Merge pull request #210 from karl-lunarg/sdk82

build: Update to get Vulkan 1.1.82 headers

Fixes to reported workgroup sizes, and attachment and image clearing to pass CTS tests.

Merge pull request #200 from billhollings/master

Report correct workgroup sizes from MTLDevice.

Fixes for cube maps, texture arrays, buffer views, depth/stencil clearing, workgroup sizes, IOSurfaces, and Retina.

Fixes to cube maps and texture arrays. Fix depth & stencil clearing. SDK 1.1.77 support. Larger buffer views. Improve crispness on Retina screens. Fix compute shader workgroup sizes. Cleanup iOS IOSurface support.

Device memory management changes

Merge pull request #173 from billhollings/master

Device memory management changes.